What is the most common bacterial infection in the u.s.?

Difficult to say: This question is so broad, it's hard to answer. There are various 'groups' of people one could look at - from babies, so kids, to adults, and even older folks. Then, you can throw race into the mix, because God made us all different so there's that. Plus, there are different 'regions of the body' that could be infected - like skin, urine, lung etc. I like to go to the CDC website for the best info